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AZ-104 Deploy and Manage Azure Compute Practice Question
Order the steps to configure Azure DNS for a custom domain.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Step 1: Create DNS zone. Step 2: Retrieve name servers. Step 3: Update registrar. Step 4: Add DNS records. Step 5: Verify.
The correct sequence for configuring Azure DNS for a custom domain is: create the DNS zone, retrieve the Azure-assigned name servers, update your domain registrar to use those name servers, add the required DNS records (e.g., A, CNAME) to the zone, and finally verify domain resolution. This order ensures that delegation is properly set before records are queried, and avoids common pitfalls such as updating the registrar without the correct name servers or trying to retrieve name servers before the zone exists.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Step 1: Create DNS zone. Step 2: Retrieve name servers. Step 3: Update registrar. Step 4: Add DNS records. Step 5: Verify.
Why this is correct
This is the correct order because the zone must exist before retrieving its name servers, and the registrar must be updated with those name servers before adding records that depend on the correct delegation. Verification should come last to confirm everything works.
- ✗
Step 1: Create DNS zone. Step 2: Update registrar. Step 3: Retrieve name servers. Step 4: Add DNS records. Step 5: Verify.
Why it's wrong here
This order fails because you cannot configure the registrar delegation until you know the four name servers assigned to the zone. Azure assigns these NS records when the zone is created, so the retrieval step must immediately follow zone creation. Updating the registrar with placeholders or old NS records would point the domain at the wrong servers, and any DNS records added afterward would never be queried. The registrar update is the critical dependency boundary: it must occur after retrieving the name servers but before adding resource records, since the zone isn't authoritative until the parent DNS servers delegate to it.
- ✗
Step 1: Create DNS zone. Step 2: Add DNS records. Step 3: Retrieve name servers. Step 4: Update registrar. Step 5: Verify.
Why it's wrong here
This order is incorrect because name servers should be retrieved before updating the registrar. While adding records before retrieving name servers is possible, the registrar update must happen after obtaining the name servers to ensure proper delegation.
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Step 1: Retrieve name servers. Step 2: Create DNS zone. Step 3: Update registrar. Step 4: Add DNS records. Step 5: Verify.
Why it's wrong here
This option reverses the dependency between zone creation and name server retrieval. The name servers are not static or pre-known values; they are generated and assigned specifically when you create the DNS zone in Azure. Attempting to retrieve name servers before step 1 would return nothing because no zone exists to own those NS records. Furthermore, the registrar update in step 3 would be invalid because the name servers obtained (if any) would be from a prior zone or incorrect source, breaking the delegation chain. The zone must be the starting point, as it is the container that holds the authoritative NS records.
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Managed Identities for Azure Resources
Key term
Custom domain
A custom domain is a personalized internet address (like contoso.com) that you can use with cloud services instead of the default domain provided by the service provider.
Key term
DNS zone
A DNS zone is a distinct part of the global Domain Name System (DNS) namespace that is delegated to a specific administrator or organization for management, containing resource records for a domain.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This AZ-104 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the AZ-104 exam.